Dust-collector



(No Model.)

R. MGWILLIAM DUST COLLECTOR.

No. 527,341. Patented O0t.9,1894.

UNITED STATES `PATENT OFFICE.

ROBERT MCWILLIAMS, OF `WEST NEWTON, PENNSYLVANIA.

DUST-'oo LLEcToR.

SPECIFICATION forming part of Letters Patent No. 527,341, dated October9, 1894. Application filed May 14, 1894:. Serial No. 511.251. (Nomodel.) Y

tion.

My invention relates to dust collectors which are commonly used in flourmills and it has for its object to purify the dust-laden air located inthe room. This I accomplish by means of .a clothcovered cylinder intowhich the dustladen air is forced, and which allows the air to escapebut retains the dust within the cylinder from whence it is conveyed awayto asuitable receptacle. Some of the dust generally adheres to the clothsurrounding the cylinderand is shaken from it by means of hammers hingedto the framework of the cylinder and caused to strike against theframework by means of a pair of cams carried by crosspieces rigidlysecured onto the shaft which passes through the cylinder. This constantknocking against the framework causes the dust to drop to the bottom ofthe cylinder from whence it is removed by means of a scraper also`carried by the shaft.

My invention further consists of certain features of novelty that willbe hereinafter fully described and specifically pointed out in theclaims.

In the accompanying drawings which form a part of thisspecification-Figure lis a vertical section of my device, and Fig. 2 isahorizontal section thereof taken on the line 2-2, Fig. l.

In the said drawings: 1 represents the uprights of the frameworkcarrying the cloth- -covered cylinder 2, and 3 the top and bottom piecesthereof which pieces also form the top and bottom heads of the saidcylinder. The said cylinder 2 is composed of the uprights 4;, connectingpieces 5 and cloth 6, which is of such a mesh as to allow the air toescape through its -meshes but to retain the dust within the cylinder.This cloth is secured to the uprights 4 in any suitable manner. 7represents the inlet `to said cylinder through which the dust-laden airis forced, and 9 the lvalved outlet thereof through which the dustescapes. The valve 10 in said outlet is of any suitable construction andis to prevent air from entering the cylinder at that point and to allowthe dust to escape after the outlet becomes filled. i

l1 represents a number of hammers located within the cylinder, andhinged at 12 to the uprights 4. These hammers consist of the metallicheads 13 and handle 14, and they are adapted to strike against the saiduprights so as to shake the cylinder and cause any dust which may besticking to the cylinder clothV to drop therefrom. mersare worked bymeans of the cams 15 of any suitable construction carried by thecrosshead 16 rigidly secured to the shaft17 which is driven by thedriving pulley 18. These cams revolve with the said cross-head andstrike against a projection 19 on the hammers, and force the saidhammersaway from the uprights, and as the cams are disengaged from theprojections the hammers fall back giving the uprights a sharp blow whichshakes the whole cylinder. The shaft 17 also carries a scraper 20 whichmoves on the lower head of the cylinder scraping all the dust therefromand forcing the same through the opening 21 inthe said lower hea-d intothe outlet chute.

22 represents a disk also carried by the cross-head 16 and revolvingtherewith. This disk is to deliect the dust-laden air entering thecylinder causing it to pass over its edge andinto the cylinder clothwhich allows the air to escape through its meshes but retains the dustwithin the cylinder.

23 represents another scraper suspended within the cylinder and over thedisk 22. This scraper is suspended from the upper cylinder head by meansof the hanger 24: secured in said cylinder head by means of the nut 25.the disk causing it to drop onto the lower cylinder head from where itis removed by the scraper 20.

26 represents a removable section, formed of uprights 26a securedtogether at top and bottom by connecting pieces, and a cloth of the samematerial as that covering the cylinder. This section is secured to theuprights 4: in any suitable mannerand is adapted These ham- This scraperremoves the dust from v to be removed inorder to gain access to theinterior of the cylinder forrepairin g or cleaning any of the Workingparts of the-device.

From the above description it Will 'be seen that I have constructed asimple and effective device for purifying the dust-ladenairin our mills.

Having thus vdescribed my invention, the

following is what I claim as new therein and desire to secure by LettersPatent:

1. In a dust collector, the combination of a cylinder composed of a topand bottom pol'.- tion and side pieces connecting themfa series ofhammers hinged to said side pieces, a cloth covering the cylinder, and ashaft carrying a number ofcams adapted toengage and operate the hammers,revolving in said cylinder, substantially as Vshown and described.

2. In a dust collector, the combination of the cylinder having inlet andoutlet openings, a shaft revolving within said cylinder and carrying anumber of cams, and a scraper' moving over the lower head 'of thecylinder, and a series of hammers hinged Withinfthe cylinder and adaptedto be engaged by said cams,

substantially as and for the purpose set forth.

` 3. In a dust collector, the combination of a cloth-covered cylinderprovided with inlet and outlet openings a shaft carrying 'antimber ofcams, a disk, and a scraper revolving Within said cylinder, a series ofhammers hinged Within said cylinder and adapted yto be engaged by saidcams, and a scraper suspended from the upper head of said cylinder loverthe said disk, substantially as shown and described.

4. In a dust collector, the combination of a cylinder composed of a topand a bottom, provided With an inlet opening and with a valved outletopening, a number of side pieces connecting the said top and bottom, acloth covering said cylinders, a series of `hammers hinged Within thecylinder to theL saidside pieces and provided with projections, ashaftlocated Within the cylinder and carrying a number of cams which engagetheprojections on the hammers and a disk, a scraper suspended from thecylinder top and over the disk, and a scraper carried by said shaft andworking on the bottom of the cylinder, substantially as shown anddescribed and for the purpose set forth.

ROBERT MCWILLIAMS.

Witnesses:

WM McCLrNTooK, GEO. L. CRoUsHoRE.

